| 摘要 |
<p>An endoscope system comprises an endoscope, a light source unit (30), and an auxiliary apparatus (54, 56) such as a camera unit (56) or a dual viewing optical unit (54). The light source unit (30) includes a discriminating circuit (50) which discriminates the kind of the auxiliary apparatus (54, 56) when the auxiliary apparatus is attached to a viewing section (6) of the endoscope (2). The discriminating circuit (50) causes a solenoid energizing circuit (40) to drive a solenoid (42) in accordance with the kind of the additional apparatus (54, 56), thereby moving a stop (38) to a predetermined position. In consequence, illumination light of a given intensity is led from a light source (34) into a light guide (32) of the endoscope (2). Thus, an image can always be observed with suitable brightness through the auxiliary apparatus (54, 56) or the viewing section (6) of the endoscope (2) without regard to the attachment of the auxiliary apparatus (54, 56), as well as to the kind thereof.</p> |
